Abalone Fishing Block 22 Seafloor Habitat Maps, 2021

The Australian Ocean Data Network provides high-resolution acoustic mapping data for Fishing Block 22 off Tasmania's east coast. This dataset includes 50cm resolution bathymetry, substrate classification, and derived seabed metrics, capturing a snapshot of seafloor habitats and vegetation distribution in 2021. It was created to support strategic decision-making for urchin control and abalone fishery management.

Use Cases

• Map fine-scale spatial distribution of key abalone habitat based on multibeam acoustic imagery.
• Analyze substrate type and kelp coverage for coastal management based on the Seamap Australia classification.
• Predict and monitor the extent of urchin barrens based on water column data and vegetation likelihood classification.
• Assess seabed morphology for ecological modeling based on bathymetry derivatives like slope, curvature, and rugosity.

Strengths

• Data products include 50cm resolution bathymetry and substrate maps, indicating high spatial detail.
• Multiple complementary data layers are available, including raw water column statistics and derived seabed metrics.
• The dataset provides a specific temporal snapshot of habitat distribution for 2021.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count and dataset size are unknown, which may limit suitability assessment.
• Data is split across multiple fishing blocks; this record only covers Block 22.

Provenance

Source

Australian Ocean Data Network

Collection Method

Multibeam acoustic imagery surveys.

Time Range

2021

Freshness

Last updated 2026-04-29 04:35:49.971004; freshness should be verified.

Geography

East coast of Tasmania, Fishing Block 22, waters less than 25 meters deep.